Hello Srinivas , 

Actually there is no website for the verification of documents in AP EAMCET. One has to report to their respective HCL (Help Line Centres) for the verification of documents. Below I have provided the counselling procedure for AP EAMCET - 

• Step 1 : Payment of Processing Fee - The eligible candidates need to pay the counselling fee first. The payment has to be done through  online mode i.e. through credit card/debit card/net banking. The counselling fee is  Rs.1200 for OC/OBC candidates and Rs.600 for SC/ST category.
• Step 2 : Verification of documents -  Candidates have to report to their respective HCL after paying the counselling fee for the verification of documents. Both orignal and photocopies of the documents have to be provided by the candidates. The list of documents are as follows -
• Rank Card of AP EAMCET
• AP EAMCET Hall Ticket
• Payment receipt of counselling fees
• 10th and 12th Mark Sheet
• Pass Certificate
• Migration Certificate
• Adhar Certificate
• Domicile Certificate
• Disability Certificate (if applicable)
• Category Certificate (if applicable)
• Income Certificate 
• NCC/CAP/Sports/Minority Certificate
• Step 3 : Filling of Choices - The candidates have to fill their choice of course and college as per their preference. 
• Step 4 : Seat Allotment - Authorities will announce the results of AP EAMCET on 11th July . A total of three round of seats allotment will be conducted . The allotments will be done on the basis of merit,reservation,category, preferences and availability of seats.

You can also go through this link and checkout the detailed counselling procedure for AP EAMCET : https://engineering.careers360.com/articles/ap-eamcet-counselling

Hope I have answered your query. Good Luck !!